Self-cleaning diaphragm for racing plate



FIG. 1 is a bottom plan view of a self-cleaning diaphragm for racing plate showing my new design, the top being a mirror image of the bottom shown;

FIG. 2 is an elevational view taken from one side thereof, the opposite side being a mirror image of the side shown;

FIG. 3 is a rear elevational view; and,

FIG. 4 is a front elevational view.

The broken line representation of a racing plate in FIG. 1 is for purposes of illustration only. 

The ornamental design for self-cleaning diaphragm for racing plate, as shown and described. 